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Average Weather In April For Auckland, New Zealand

Location

This report describes the typical weather at the Auckland Airport (Auckland, New Zealand) weather station over the course of an average April. It is based on the historical records from 1990 to 2012. Earlier records are either unavailable or unreliable.

Auckland has a mild humid temperate climate with warm summers and no dry season. The area within 25 mi of this station is covered by grasslands (47%), oceans and seas (28%), built-up areas (10%), lakes and rivers (10%), and forests (5%).

Temperature

The month of April is characterized by gradually falling daily high temperatures, with daily highs decreasing from 70°F to 65°F over the course of the month, exceeding 74°F or dropping below 61°F only one day in ten.

Fraction of Time Spent in Various Temperature Bands in April

The average fraction of time spent in various temperature bands: frigid (below 15°F), freezing (15°F to 32°F), cold (32°F to 50°F), cool (50°F to 65°F), comfortable (65°F to 75°F), warm (75°F to 85°F), hot (85°F to 100°F) and sweltering (above 100°F).

Sun

Over the course of April, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:04 hours, implying an average day-over-day decrease of 2.1 minutes.

The shortest day of the month is April 30 with 10:36 hours of daylight; the longest day is April 1 with 11:40 hours of daylight.

Daily Hours of Daylight and Twilight in April

The number of hours during which the Sun is visible (black line), with various degrees of daylight, twilight, and night, indicated by the color bands. From bottom (most yellow) to top (most gray): full daylight, solar twilight (Sun is visible but less than 6° from the horizon), civil twilight (Sun is not visible but is less than 6° below the horizon), nautical twilight (Sun is between 6° and 12° below the horizon), astronomical twilight (Sun is between 12° and 18° below the horizon), and full night.

The earliest sunrise is at 6:35am on April 1; the latest sunset is at 6:15pm on April 1; the latest sunrise is at 6:59am on April 30; the earliest sunset is at 5:36pm on April 30.

Daylight savings time (DST) ends at 2:00am on April 1, 2012, shifting sunrise and sunset to an hour earlier.

Daily Sunrise & Sunset with Twilight and Daylight Savings Time in April

The solar day over the course of the year 2012 . From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (solar, civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight savings time are indicated by the "DST" labels.

Clouds

The median cloud cover is 61% (partly cloudy) and does not vary substantially over the course of the month.

Median Cloud Cover in April

The median daily cloud cover (black line) with percentile bands (inner band from 40th to 60th percentile, outer band from 25th to 75th percentile).

On April 15, a representative day, the sky is clear or mostly clear25% of the time, partly cloudy25% of the time, and mostly cloudy or overcast35% of the time.

Cloud Cover Types in April

The fraction of time spent in each of the five sky cover categories. From top (most blue) to bottom (most gray), the categories are clear, mostly clear, partly cloudy, mostly cloudy, and overcast. Pink indicates missing data. Outside of the United States clear skies are often reported ambiguously, leading them to be lumped in with the missing data.

Precipitation

The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around April 30, occurring in 58% of days. Precipitation is least likely around April 8, occurring in 51% of days.

Probability of Precipitation at Some Point in the Day in April

The fraction of days in which various types of precipitation are observed. If more than one type of precipitation is reported in a given day, the more severe precipitation is counted. For example, if light rain is observed in the same day as a thunderstorm, that day counts towards the thunderstorm totals. The order of severity is from the top down in this graph, with the most severe at the bottom.

Throughout April, the most common forms of precipitation are moderate rain and light rain.

Moderate rain is the most severe precipitation observed during 73% of those days with precipitation. It is most likely around April 30, when it is observed during 42% of all days.

Light rain is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around April 1, when it is observed during 9% of all days.

Types of Precipitation Throughout April

Relative frequency of various types of precipitation over the course of a typical April.

Snow

Either snow is exceptionally unlikely to fall at this location in April or this station does not reliably report precipitation types.

Humidity

The relative humidity typically ranges from 61% (mildly humid) to 94% (very humid) over the course of a typical April, rarely dropping below 48% (comfortable) and reaching as high as 100% (very humid).

The air is driest around April 1, at which time the relative humidity drops below 66% (mildly humid) three days out of four; it is most humid around April 24, rising above 90% (very humid) three days out of four.

Relative Humidity in April

The average daily high (blue) and low (brown) relative humidity with percentile bands (inner bands from 25th to 75th percentile, outer bands from 10th to 90th percentile).

Dew Point

Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.

Over the course of a typical April, the dew point typically varies from 49°F (dry) to 60°F (comfortable) and is rarely below 43°F (dry) or above 65°F (mildy humid).

The time of the month between April 1 and April 30 is the most comfortable, with dew points that are neither too dry nor too muggy.

Wind Speed in April

The average daily minimum (red), maximum (green), and average (black) wind speed with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).

The wind is most often out of the south west (24% of the time), west (14% of the time), north east (12% of the time), and north (11% of the time).

Wind Directions in April

The fraction of time spent with the wind blowing from the various directions over the entire year. Values do not sum to 100% because the wind direction is undefined when the wind speed is zero.

Fraction of Time Spent with Various Wind Directions in April

The fraction of time spent with the wind blowing from the various directions on a daily basis. Stacked values do not always sum to 100% because the wind direction is undefined when the wind speed is zero.